Patent attributes
An audio connector has an insulated case, an inner and outer contact and a slide. The insulated case has a central socket and second and first inner recesses that communicate with the central socket. The second inner recess has a guide channel. The inner contact is mounted in the first inner recess and selectively protrudes into the central socket. The outer contact is mounted in the second inner recess, and has an outer resilient contact, a resilient switch contact and a stationary switch contact. The outer resilient contact selectively protrudes into the central socket. The resilient switch contact has a distal end that aligns with the guide channel. The slide is mounted movably in the guide channel and is pressed into the central socket by the resilient switch contact. When a jack is inserted into the central socket, the slide keeps the jack from damaging the outer resilient contact.